http://hl7.org/fhir/StructureDefinition/structuredefinition-interface|5.2.0

Marks that the resource definition represents an [interface](uml.html#interface) rather than a resource.

element_id	types
Extension
Extension.extension
Extension.url
Extension.value[x]	boolean
Extension
Extension.id	http://hl7.org/fhirpath/System.String
Extension.extension	Extension
Extension.url	http://hl7.org/fhirpath/System.String
Extension.value[x]	boolean